Rolling apparatus



BEST COPY A ril 27, 1926.

I 1,582,559 K. J. THOMPSON ROLLING APfARATUS Filed May 51 1923 sSheets-She et 1 April 2?" 119260 K. ,3. THOMPSQN ROLLING APPARATUS FiledMay 31, 1923 K. J. THOMPSON ROIZLING APPARATU Filed May 31 April 27 19231 3 Sheets-Sheet 5 Patented Apr. 27, 192.6.

KENWORTHY J. THOMPSON, OF MANSFIELD, OHIO.

ROLLING AYPARALUS.

Application filed'lv'iay 31,1923. senai' No. esaeea.

To all whom z't'maz concern;

Be it known that Knnivdirrrn' J. THOMP- so'v, subject of the King ofGreat'Britain, and a resident of the city of Mansfield, in the county'of Richland' and State of Ohio, have invented certain new and'usefulImprovements in a Rolling'Apparatus; andI do hereby declare that'the.followin'gis a fulhclear, and exact description ofthesame, referencebeing had tothe accompanying hrawingsi andto the numerals 'of' referencemarked tl1QIBQI1,W-hl0l1101'111 apart of this specification.

This invention relates to 'machines for compressing and rolling "strips'of fabric and the like.

In the manufacture of tires two or more ply fabric is employed andhitherto this has been made by pressing together the strips ofrubberized fabricby hand with or without the aid of manuallyope'ratedtools.

It has been'found very difficult to expel all the air from between thestrips'andbring the layers of fabric into 'closecontact With each other.This is necessary to prevent fabric separation during I'vulca niz-ation.Even a small air bubble will expand in the vulcanizing operationandprevent union of the "tWo layers over a much larger area than thatoriginally occupied by the'bubblef One of'the'principal objects ofthe'present invention, therefore, is the provision of 'm'eans forpressing together two orfmore treated strips of-fabric so as to expeltheair therebetween. I

A further object of the invention 'is the provision of means for rollinganendless strip of fabric. 7

It is also an object of the invention to provide means for supportingane-ndless band of fabric in extended position *and'simultaneouslypassing itfb'etxveen rolls.

An additional object of'the inventionis to provide a rolling machine,into which an endless band can be readilyinserted and as readilyWithdrawn.

Other and further important objects of this invention Will be Y apparentfr'ojm the lisclosures in the specification and accom- -Figure 3 is aside elevation of themachine.

Figure 1 is a section on the line k4: of Figure 1. I

Figure 5 is an enlarged detail view of a part of the operating andlocking mechanism.

Figure 6 is-a section on the line 6-6 of Figure l igure 7 is a sectionon the line 77 of Figure -5. V

Fi gure 8 is an enlarged detailvieiv of the toggle mechanism foroperating the tension roll.

Figure 9 i'sa view takenon-the line 9-9 of Figure 6.

As shown on the drawings: 'l-he machine -co-mpr1ses a base 10, fromwhich, adj acent one corner, rises a standard 11. On one side of-thisstandardis secured or made integral therewith 'a frame 12.

In theuppe'r part of this frame is journaled a shaft carrying a roll 14,-Above this roll is asimilar 'roll' carried by a frame 16pivotallyconnected to the main frameat -17. V

In view of the fact that the frame 16 is supported at one end only andthe rolls 14 and 15 are=separable at their ends opposite to the framesupport, endless strip of inaterial i nay readily be'inserted between orWithdrawn from the rolls.

The shaft '18, 'vvhichcarries the roll 15,

vis not journaled directly in the frame 16, but in bearings 19 havingcylindrical extensions -20 which project into sockets in the frame 16.In these sockets are arranged springs 21 tencling to press'the roll 15downwardly. The tension of these springs may be varied by mean'sofheaded bolts 22.

Instead ofusingsprings to provide the "desired downward pressure on theroll 15 fluid pressure, such as compressed air; may be employed. ThlSmay convenientlyv be accomplished by lnsertlng compressed 2111'eonnections in place-0f the bolts 22 and placing piston rings ontheezitensions 20.

The free end o'ffthe frame 16 is normally connected to the frame 12by'nieans of a hook 23, rotatably secured to tlielovver frame *andadaptfed toengage *a'f 'pin 24- projecting fijonrthe e'nd efthe frame16. V

- "When the hook =23 "is disengaged from the apivot notbnly astlre-resnlt-ofthe action pei ijigs 2-1; ieh 'act o'n the roll 15, but

;p'i n%24,tlie rams-16 swings ipivardly about also by the action ofsprings provided for this purpose near the pivotal axis of the frame.Pins 28 are provided for limiting the downward movement of the roll 15when the frame 16 is elevated.

The hook is rotatably mounted on an eccentric 26 secured to a shaft 27journaled in the frame 12 so that by turning the shaft after the hookhas been brought into engagement with the pin 2i, the upper frame n'iaybe drawn downwardly. A handle 29 s curcd to the end of this shaft 2?enables it to be turned when desired.

On the strap around the eccentric 26, which carries the hook pins 60 maybe arranged for engagement with the handle 29 so that the handle 29cannot be brought into vertical position without causing the hook toengage the pin 2-l or into horizontal po sition without disengaging thebook from the pin.

In addition to providing a pair of springpressed rolls, it is alsodesirable to provide means for holding the endless band of treatedfabric in extended position while it is being passed through theserolls, and also to provide means for examining the band while underrolling treatment.

For this purpose brackets 30 are provided, extending forwardly from theframe 12 and between them extends a table 31. At the forward edge ofthis table a roll 32 is pivotally mounted. This table 31 is so arrangedthat its upper surface is in substantially the same plane as the line ofcontact of the rolls 1% and 15 and the upper surface of the roll 32.

On the other side of the frame 12 another roll 33 is provided, rotatablymounted on ashaft- 35 journaled between lugs 34:. A tension roll 36 isprovided, journaled between arms 37 secured to the shaft By turning thisshaft, therefore, the position of the tension roll may be varied. Themechanism for turning the shaft includes a sleeve 238 rotatably mountedon the shaft and provided at its outer end with a flange 39. The shaft35 is provided with a similar flange. "f0. A bolt a1 attached to theflange 39 extends through an arcuate slot 42 in the flange e0. A.ring-nut serves to clamp the two flanges in any desired position.

()n the sleeve 38 is an arm if connected by links to an arm 46 attachedto the shaft 27, which is rotatable by the handle 29. Hence, byoperating the handle 29 the shaft 35 may be turned and the position ofthe tension roll varied.

The machine is intended for use on annular bands of various diameters.and in changing from one size to another'size it is desirable to providequick means for adjusting the rerativc positions of the flanges 39 andd0 so that when the handle 29 is brought into its upper position thetension roll is swung downwardly to the requisite extent,

For this purpose I may provide a series oi steel bands having diametersequal to the band to be pressed.

To set the machine by one of these bands 61 the wing-nut $3 is loosenedso that the flanges 39 and a0 are free to move relatively to each other.The handl 29 is placed in vertical position and the band (31 is placedaround the rolls as shown in Figure The tension roll 30 is thendepressed mull the band (31 is drawn tight. The wing-nut is thentightened to lock the flanges 35) and it) together.

The handle 29 is thenswung downwardly to raise the tension roll to allowthe steel band (51 to be removed and the fabric band to be inserted inits place.

In place of, or in addition to, the use of steel bands of knowndiameter, a scale 62 may be provided behind one of the arms '57 whichcarries the tension roll 36. This scale may he graduated arbitrarily foruse with a computing table or itmay he graduated so as to give directlythe circumference or di ameter of a steel tape which, when stretched.will encircle the rolls with the tension roll ll; in that position.

It will be seen from Figure 8 that when the tension roll is extendeddownwardly the arm 1-6 and links are in substantially a straight line sothat we have a toggle joint connection.

Ylhile, in view of this toggle connection. direct pressure on thetension roll cannot turn the shafts 35 or 2]", the parts might, unlessotherwise prevented, become displaced by vibratory movements. To hold tle handle releasably in the desired position, a bolt 41-? is slidablymounted on the handle 20. This bolt is provided with a rounded end 45:adapted to enter an aperture in the upper frame 16. A. knob 49 at itsother end enables the bolt to be withdrawn manually against the actionof its spring .70.

The lower roll if only rotated by power. and for this purpose a pulley.71 is rotatably mounted upon the shaft 1 3, which carries this roll. Aclutch serves to connect the pulley to the shaft when desired. Thisclutch is operated by a bell crank 53. one arm of which is forked forengagement with a pin 54 on the clutch. The other arm of theliiell-crank is connected by a link 55 to a pedal 56.

The operation is as follows:

The handle 29 is swung downwardly, and by engagement with one of thepins it) the book 23 is simultaneously disconne ted from pin 2-1:. Thesprings tend to more the frame upwardly so as to separate the roll- 1-1-and 15 and allow the endless band to be inserted therebetwccn. The down'ardmovcment of the handle 29, by means of shaft 2?, arm 46, link l5,arm 1 shaft 35 and arms 37, causes the tension roll 36 to be loo engagethe pin 24. This hook is preferably moved into enga ement by hand, butmay be forced into engagement with its pin by pressure of the handleagainst the pin on the strap portion of the hook.

The machine is then set in operation by n'essin down the oedal 56 which0 oerates' to l 7 the clutch between the pulley 51 and the shaft 13,which carries the roll 14:. c

I am aware that numerous details of construction may be varied through awide range without departing from the principles of this invention, andl thereforev do not purpose limiting the patent granted other-- wisethan necessitated by the prior art.

I claim as my invention:

1. A machine of the kind described comprising a frame, a plurality ofrolls supported thereby and adapted to carry an endless band in extendedposition, a support for said frame connected thereto adjacent one end ofsaid rolls only, and a further roll movable as a whole relatively to theother rolls and adapted to press the bent against one of such rolls.

A machine of the kind described, comprising a frame, a plurality ofrolls supported'thereby and adapted to carry an endlessband inendlessand extended position, a support for said frame connected theretoadj cent one end of said rolls only, a second fra 1e pivotally connectedto the first frame ad acentsaid support, a roll carried by the secondframe adapted to press the band against one of the first mentioned rollsand means for releasably connecting the free end of the second frame tothe first frame.

3. A machine of the kind described comprising a lower frame, a rolljournalled therein, a second frame pivotally secured to the first frame,a roll carried by the first frame adapted to press against the firstroll, a tensionroll supported by the lower frame and means forsimultaneously drawing said frames together and moving said roll intoextended position.

a. A machine of the kind described comprising a lower frame, a rolljournalled therein, a second frame pivotally secured to the first frame,a roll carried by the first frame adapted to press against the firstroll, a tension roll supported by the lower frame and means forsimultaneously connecting said frames together and moving said roll intoextended position.

5. A machine of the kind described comprising a frame, a roll journalledtherein, a second frame pivotally secured to the first frame, arollcarried by the second frame against the first roll, an eccentric on thefirst frame, a hook journalled on said eccentric adapted to hold thefree end of the second frame in engagement with the first frame andmeans for turning the eccentric to draw the hook downwards.

(3. A machine of the kind described co1nprising a lower frame, a rolljournalled therein, a second frame pivotally secured to the first frame,a roll carried by the second frame adapted to press against the firstroll, a hook adapted to hold the free end of the second frame inengagement with the first frame, a shaft, arms on said shaft, a tensionroll carried by said arms and means for simultaneously moving said shaftand connecting and disconnecting said hook.

7. A machine of too kind described including a shaft, arms on saidshaft, a tension roll carried by said arms, a toggle joint forreleasably holding the tension roll in operative position, an adjustablecoupling between said shaft and said toggle joint, and a graduatedquadrant adjacentsaid arms to determine the desired point of adjustmentof said coupling.

8, A machine of the kind described comprising a lower frame, arolljournalled therein, an upper frame pivotally secured to the lowerframe, a roll carried by the upper frame, means for releasably holdingthe upper and-lower frames together, a table se cured to the lower frameextending; for

tion of said lower frame, a shaft journalled in the lower frame, arms onsaid shaft and a tension roll carried by said arms.

In testimony whereof I have hereunto subscribed my name.

KENWORTHY J. THOMPSON.

